Base | Representation |
---|---|
bin | 100001000010101… |
… | …010111101011101 |
3 | 1102122002211000112 |
4 | 201002222331131 |
5 | 2113403122011 |
6 | 131001335405 |
7 | 16510612016 |
oct | 4102527535 |
9 | 1378084015 |
10 | 554348381 |
11 | 264a08164 |
12 | 135797565 |
13 | 8ab037c2 |
14 | 538a200d |
15 | 33a0158b |
hex | 210aaf5d |
554348381 has 2 divisors, whose sum is σ = 554348382. Its totient is φ = 554348380.
The previous prime is 554348371. The next prime is 554348383. The reversal of 554348381 is 183843455.
554348381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 523723225 + 30625156 = 22885^2 + 5534^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-554348381 is a prime.
It is a super-2 number, since 2×5543483812 = 614604255034642322, which contains 22 as substring.
Together with 554348383, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (554348383) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277174190 + 277174191.
It is an arithmetic number, because the mean of its divisors is an integer number (277174191).
Almost surely, 2554348381 is an apocalyptic number.
It is an amenable number.
554348381 is a deficient number, since it is larger than the sum of its proper divisors (1).
554348381 is an equidigital number, since it uses as much as digits as its factorization.
554348381 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 230400, while the sum is 41.
The square root of 554348381 is about 23544.6040739699. The cubic root of 554348381 is about 821.4748299566.
The spelling of 554348381 in words is "five hundred fifty-four million, three hundred forty-eight thousand, three hundred eighty-one".
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